BHI 1042 User manual
1042 Switch Box
Operating Instructions
1042-106D
Issue D
bhi
DSP Noise Cancelling Products
DSP Noise Cancelling Products
bhi
bhi Ltd
PO Box 318
Burgess Hill
West Sussex
RH15 9NR
email: [email protected]
www.bhinstrumentation.co.uk
Tel: + 44(0)845 2179926
Fax: + 44(0)845 2179936
Skype: bhi-sales
Introduction.
The bhi 1042 switch box allows up to six pieces of equipment
to be connected to one bhi noise eliminating module/speaker
or even a standard extension speaker.
The 1042 switch box is supplied with two 3.5mm mono audio
leads. For additional leads please use the enclosed order
form or contact bhi.
The switch box has 2 types of inputs:
1. Loaded Inputs
The loaded inputs have an 8 Ohm load connected to the
socket. this simulates the speaker load to the equipment
connected to it. These inputs are suitable for connection
to the external speaker outputs of your equipment. Do
not connect line level or headphone level signals to these
inputs.
This switch box is not suitable for connection to inputs
generating more than 4 Watts of power. bhi do not accept
liability for damage to equipment.
2. Unloaded inputs
The unloaded inputs are suitable for connection to low signal
levels, such as line level and headphone level. These inputs
do not load the signal in any way.
Accessories.
A range of audio adaptors and leads are available to allow a
wide range of equipment to be connected to the 1042 switch
box.
Audio leads:
Description
Order code
3.5mm mono - 3.5mm mono 1.2M long ALD-001
3.5mm mono - 3.5mm mono 2.5M long ALD-002
3.5mm phono - 3.5mm mono 1.8M longALD-005
Audio Adaptors:
Description
Order code
3.5mm stereo plug- 3.5mm mono socket ADP-P003
2.5mm mono plug - 3.5mm mono socket ADP-P005
2.5mm stereo plug - 3.5mm stereo socket ADP-P006
6.35mm mono plug - 3.5mm mono socket ADP-P001
3.5mm mono plug
Phono plug
3.5mm mono plug 3.5mm mono plug
English
1. Connections and Controls 2. Switch box Output Connection
3. Connecting Equipment 4. Operation
Set up the equipment as detailed in the instructions provided
with the NES10-2/NES5 or NEIM1031.
Each of the inputs are numbered on the rear panel. To select
an input rotate the switch to the relevant number.
The loaded inputs remain loaded even when they are not
selected.
Operation is the same, except you now have the ability to
leave the equipment connected, and use more than one audio
source.
If a large number of audio sources need to be connected, then
it is possible to cascade switch boxes.
Input Selector Switch
Output to
bhi module/speaker
or other extension speaker
Loaded inputs
8 Ohms
(speaker level)
Unloaded inputs
(headphone/line level)
NES5/NES10-2
or extension speaker
connects directly to the
output socket
ALD-001 connected to the audio input
ALD-005 if using line level signals
See note below
Audio Sources Audio Sources
Connect line
(or headphone level)
audio sources
to the un-loaded inputs
Connect external
speaker output
connections to the
loaded inputs.
To save desk space the Noise
eliminating speaker may be
placed on top of the switch
box
Front View
Rear View
ALD-001
ALD-002 ALD-005
or
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Table of contents
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